[Prognostic value of the peroxidase index in patients with acute nonlymphoblastic leukemia].

In 91 patients with acute non-lymphoblastic leukaemia the peroxidase index was determined in blast cells or promyelocytes in bone marrow. Complete remission was obtained exclusively in patients with the value of the index 0-9% or over 69%. The duration of the remission and the survival time were significantly longer in patients with a high peroxidase index. This index may be useful for prediction of the course of acute non-lymphoblastic leukaemia in adults and its high value is associated with better prognosis.